|
theredark
|
 |
« on: October 16, 2011, 01:35:34 PM » |
|
Hi all,
Rebuilt petcock per Shoptalk. Upon testing it prior to putting back on tank, the plunger retracts when vacuum is applied but does't want to return when vacuum is released. Where is the check valve to release the vacuum, in the outside cover? I sprayed both sides of that with carb cleaner and am now letting it sit. If I take unit apart and reassemble the same thing happens.
Thanks,
Brad
|
|
|
|
|
Logged
|
2000 Black/Red Interstate
|
|
|
|
Pete
|
|
« Reply #1 on: October 16, 2011, 02:22:46 PM » |
|
Most vacuum petcocks use a spring to return the plunger.
|
|
|
|
|
Logged
|
|
|
|
|
Blackduck
|
|
« Reply #2 on: October 16, 2011, 04:04:26 PM » |
|
In the outer cover on the vacumm side there is a pressed in alloy disc. There is a very fine bleed hole in it, mine was blocked and this held the vacumm on the diaphragm. Cheers Steve.  |
|
|
|
« Last Edit: October 16, 2011, 04:34:34 PM by Blackduck »
|
Logged
|
2001 Standard, 78 Goldwing, VRCC 21411
|
|
|
Daniel Meyer
Member
Posts: 5493
Author. Adventurer. Electrician.
The State of confusion.
|
|
« Reply #3 on: October 16, 2011, 05:46:49 PM » |
|
Did you not get a new cover in your rebuild kit?  |
|
|
|
|
Logged
|
CUAgain, Daniel Meyer  |
|
|
|
YoungPUP
|
|
« Reply #4 on: October 16, 2011, 05:52:32 PM » |
|
Most of the aftermarket kits don't include the covers, just the innards. Rebuilt mine with a kit from K&L last spring for 12 bucks.
|
|
|
|
|
Logged
|
Yea though I ride through the valley of the Shadow of Death I shall fear no evil. For I ride the Baddest Mother F$#^er In that valley!
99 STD (Under construction)
|
|
|
Daniel Meyer
Member
Posts: 5493
Author. Adventurer. Electrician.
The State of confusion.
|
|
« Reply #5 on: October 16, 2011, 06:37:17 PM » |
|
Ah. Didn't know that. The cover is included in the OEM kit and there is a dampener in it that can clog or be damaged. If you're going to stick with the OEM petcock, I'd recommend getting the kit that has the cover set (OEM apparently)
|
|
|
|
|
Logged
|
CUAgain, Daniel Meyer |
|
|
|
YoungPUP
|
|
« Reply #6 on: October 16, 2011, 06:56:16 PM » |
|
Didn't know about the dampner. Ill make sure to get a "Stock" kit for my next rebuild. At the time I did the rebuild, the stock set was on backorder, and the dealer was able to get the K&L kit overnight.
|
|
|
|
|
Logged
|
Yea though I ride through the valley of the Shadow of Death I shall fear no evil. For I ride the Baddest Mother F$#^er In that valley!
99 STD (Under construction)
|
|
|
|
theredark
|
|
« Reply #7 on: October 16, 2011, 10:13:33 PM » |
|
Is there any way to "clear" that hole in the cover? It is soaking in carb cleaner overnight. Maybe try using a needle in the hole? Thanks for putting me on the right track. Brad
|
|
|
|
|
Logged
|
2000 Black/Red Interstate
|
|
|
|
donaldcc
|
|
« Reply #8 on: October 16, 2011, 10:39:26 PM » |
|
You have this spring, right?  |
|
|
|
|
Logged
|
Don
|
|
|
|
junior
|
|
« Reply #9 on: October 17, 2011, 12:46:07 AM » |
|
i had rebuilt mine twice with the OEM kits. they lasted about a year each then replaced it with a pingle and never had a problem sence
|
|
|
|
|
Logged
|
|
|
|
|
Blackduck
|
|
« Reply #10 on: October 17, 2011, 04:22:40 AM » |
|
A pin would clear it.
With mine I used the smallest Letter bit I had and opened it up a little, also added 2 tees and hooked up all three inlet nipples to the petcock. Used the Letter bit to make up 3 orifice plugs (used some small round solder I had make the plugs then drilled them) that are installed in the hoses at the nipples A vacumm guage showed no pulsing in the line to the petcock.
On my second Valk and have only had the orifice block up, never any other failure of the petcock.
Mate has a 97 that is still on the original petcock.
I really don't know why so many people have so many failures and if they were in fact failures or incorrect installation back on the bike.Would like to hear what the exact failures were
|
|
|
|
|
Logged
|
2001 Standard, 78 Goldwing, VRCC 21411
|
|
|
|
theredark
|
|
« Reply #11 on: October 17, 2011, 04:26:23 AM » |
|
You have this spring, right? yes and it does work but very very slowly, sometimes 10-15 minutes to close. Will try the pin next. thx |
|
|
|
|
Logged
|
2000 Black/Red Interstate
|
|
|
Hoser
Member
Posts: 5844
child of the sixties VRCC 17899
Auburn, Kansas
|
|
« Reply #12 on: October 17, 2011, 04:55:25 AM » |
|
|
|
|
|
|
Logged
|
I don't want a pickle, just wanna ride my motor sickle  [img width=300 height=233]http://i617.photobucket.com/albums/ |
|
|
|
theredark
|
|
« Reply #13 on: October 17, 2011, 05:03:18 AM » |
|
yeah, I had cheaped out and just bought the aftermarket kit, now I see why it was cheaper! |
|
|
|
|
Logged
|
2000 Black/Red Interstate
|
|
|
|
Fritz The Cat
|
|
« Reply #14 on: October 17, 2011, 05:09:13 AM » |
|
How do you know your petcock needs rebuilding?
|
|
|
|
|
Logged
|
|
|
|
|
theredark
|
|
« Reply #15 on: October 17, 2011, 06:26:20 AM » |
|
How do you know your petcock needs rebuilding?
I pulled the tank for some other work I was doing and forgot to turn valve to off first. When I pulled the hose off the petcock there was a fuel fountain! I quickly turned it to off. |
|
|
|
|
Logged
|
2000 Black/Red Interstate
|
|
|
|
Blackduck
|
|
« Reply #16 on: October 17, 2011, 04:50:11 PM » |
|
When you put it all back together leave the fuel hose till last. That way you can check the selector shaft is not holding the petcock off it's seat and that the vacumm side is holding when the petcock is on ON or on Reserve.
Cheers Steve
|
|
|
|
|
Logged
|
2001 Standard, 78 Goldwing, VRCC 21411
|
|
|
|
